$\sqrt{1.21} + \sqrt{0.16}$ equals

$\sqrt{1.21} + \sqrt{0.16}$ equals
  1. $1.5$
  2. $0.15$
  3. $1.37$
  4. $1.4$

Solution

$\sqrt{1.21} = 1.1$, $\sqrt{0.16} = 0.4$. Sum $= 1.5$.

Asked in: IMO

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